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Three-phase intelligent dual-power seamless automatic switching device

An automatic switching, dual power supply technology, applied in circuit devices, emergency power supply arrangements, electrical components, etc., can solve problems such as few control functions, display parameters are not true effective values, and unable to provide working power to the control system.

Inactive Publication Date: 2017-09-26
重庆瑞升康博电气有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the three-phase intelligent dual power supply seamless automatic switching device on the market has fewer control functions, single display content and display parameters are not true effective values. The control system provides normal working power, lacks network communication functions, and is difficult to meet the growing demand for smart grids

Method used

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Embodiment Construction

[0027] The implementation of the present invention will be further elaborated below in conjunction with the figures.

[0028] figure 1 It is the overall block diagram of the three-phase intelligent dual power supply seamless automatic switching device. The main / auxiliary three-phase AC power input step-down unit 1 and 2, through the step-down unit 1 and 2, the input AC high voltage is changed to low voltage, and the AC parameter is sent Detection units 3 and 4, AC parameter detection units 3 and 4 use micro current / voltage sensors to collect the current and voltage signals of the main / auxiliary three-phase AC power supply respectively, and the collected signals are sent to the true effective value processing unit 5 for processing The microprocessor unit 6 receives the signal from the true effective value processing unit 5, and sends the liquid crystal display unit 8 to display the current, voltage, and frequency values ​​of the current three-phase power supply in real time aft...

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Abstract

The invention discloses three-phase intelligent dual-power seamless automatic switching device, and the device comprises a main / auxiliary three-phase AC power input step-down unit, a main auxiliary three-phase AC power input AC parameter detection unit, a true effective value processing unit, a microprocessor unit, a keyboard input unit, a liquid crystal display unit, an alarm unit, a JTAG debugging jack, a network communication unit, a E2PROM unit, a real-time clock unit, a power drive unit, a switch body, an external generator terminal, a switch body position feedback device, a control device working power supply unit, and a control device working power supply distribution unit. The device employs the microprocessor control technology, and employs a true effective value dedicated chip for the detection and calculation of electrical parameters, thereby avoiding the virtual data of AC parameter measurement and improving the control precision. The device has a function of manual / automatic switching, and the switching time is set freely. The device has a function of detecting overload, undervoltage, overvoltage and frequency changes and the switching state of a contact of the switch body, and a function of giving an alarm. The device has a function of fire protection linkage and a function of network communication. The device also has the function of independent three-phase controller working power supplies. The device also has a function of remotely controlling a normal generator. The device also has a function of liquid crystal backlight control.

Description

technical field [0001] The invention relates to the field of automatic switch electrical appliances for power supply systems, in particular to a three-phase intelligent dual power supply seamless automatic switching device. Background technique [0002] With the development of society, people have higher and higher requirements for the reliability and safety of power supply. Under the current objective situation of sharp increase in urban electricity consumption and serious shortage of power resources, two-way power supplies are required to ensure reliable power supply in many occasions. One power supply is the common power supply (also known as the main power supply) for power supply, and the other is the backup power supply (also called the auxiliary power supply). Once the main power supply fails, the auxiliary power supply will work immediately, so that the load end will not be affected by the power failure of the main power supply. . To maintain the normal operation of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
CPCH02J9/061H02J9/068
Inventor 陈军冯伟杨波
Owner 重庆瑞升康博电气有限公司
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